I am trying to answer udp broadcast message but even I have not get any error during send, message does not recieved by computer.
Here my code
void main(void)
{
unsigned char i;
uint8_t macread[8];
SYSTEM_Initialize();
//w5500
__delay_ms(30);
printf("W5500 EVB initialization over.\r\n");
WIZ550_PWR_SetLow();
Reset_W5500();/*Ó²ÖØÆôW5500*/
printf("W5500 initialized!\r\n");
setSHAR(mac);/*ÅäÖÃMacµØÖ·*/
setSUBR(sub);/*ÅäÖÃ×ÓÍøÑÚÂë*/
setGAR(gw);/*ÅäÖÃĬÈÏÍø¹Ø*/
setSIPR(lip);/*ÅäÖÃIpµØÖ·*/
//Init. TX & RX Memory size of w5500
wizchip_init(w5500_tx_buffer_len,w5500_rx_buffer_len);
setRTR(2000);/*ÉèÖÃÒç³öʱ¼äÖµ*/
setRCR(3);/*ÉèÖÃ×î´óÖØз¢ËÍ´ÎÊý*/
getSIPR(ip);
printf("IP : %d.%d.%d.%d\r\n", ip[0],ip[1],ip[2],ip[3]);
getSUBR(ip);
printf("SN : %d.%d.%d.%d\r\n", ip[0],ip[1],ip[2],ip[3]);
getGAR(ip);
printf("GW : %d.%d.%d.%d\r\n", ip[0],ip[1],ip[2],ip[3]);
getSHAR(macread);
printf("MAC : %02X:%02X:%02X:%02X:%02X:%02X\r\n", macread[0],macread[1],macread[2],macread[3],macread[4],macread[5]);
printf("Network is ready.\r\n");
//w5500
while (1)
{
// Add your application code
for(i=0;i<_WIZCHIP_SOCK_NUM_-1;i++)
{
loopback_tcps(i,buffer,port+i);
}
i=_WIZCHIP_SOCK_NUM_-1;
loopback_udps(i,buffer,65535);
}
}
int32_t loopback_udps(uint8_t sn, uint8_t* buf, uint16_t port)
{
int32_t ret;
uint16_t size, sentsize;
uint8_t destip[4];
uint16_t destport;
switch(getSn_SR(sn))
{
case SOCK_UDP :
if((size = getSn_RX_RSR(sn)) > 0)
{
if(size > DATA_BUF_SIZE) size = DATA_BUF_SIZE;
ret = recvfrom(sn, buf, size, destip, (uint16_t*)&destport);
if(ret <= 0)
{
#ifdef _LOOPBACK_DEBUG_
printf("%d: recvfrom error. %ld\r\n",sn,ret);
#endif
return ret;
}
printf("\r\nIP:%u.%u.%u.%u port:%u DATA:",destip[0],destip[1],destip[2],destip[3],destport);
size = (uint16_t) ret;
buf[size]=0;
printf("%s",buf);
sentsize = 0;
while(sentsize != size)
{
// destip[0]=255;
// destip[1]=255;
// destip[2]=255;
// destip[3]=255;
ret = sendto(sn, buf+sentsize, size-sentsize, destip, destport);
if(ret < 0)
{
#ifdef _LOOPBACK_DEBUG_
printf("%d: sendto error. %ld\r\n",sn,ret);
#endif
return ret;
}
else
{
printf(" send: %ld\r\n",ret);
}
sentsize += ret; // Don't care SOCKERR_BUSY, because it is zero.
}
}
break;
case SOCK_CLOSED:
#ifdef _LOOPBACK_DEBUG_
//printf("%d:UDP loopback start\r\n",sn);
#endif
if((ret = socket(sn, Sn_MR_UDP, port, SF_MULTI_ENABLE)) != sn)
return ret;
#ifdef _LOOPBACK_DEBUG_
printf("%d:Opened, UDP loopback, port [%u]\r\n", sn, port);
#endif
break;
default :
break;
}
return 1;
}
int32_t loopback_tcps(uint8_t sn, uint8_t* buf, uint16_t port)
{
int32_t ret;
uint16_t size = 0, sentsize=0;
#ifdef _LOOPBACK_DEBUG_
uint8_t destip[4];
uint16_t destport;
#endif
switch(getSn_SR(sn))
{
case SOCK_ESTABLISHED :
if(getSn_IR(sn) & Sn_IR_CON)
{
#ifdef _LOOPBACK_DEBUG_
getSn_DIPR(sn, destip);
destport = getSn_DPORT(sn);
printf("%d:Connected - %d.%d.%d.%d : %u\r\n",sn, destip[0], destip[1], destip[2], destip[3], destport);
#endif
setSn_IR(sn,Sn_IR_CON);
}
if((size = getSn_RX_RSR(sn)) > 0) // Don't need to check SOCKERR_BUSY because it doesn't not occur.
{
if(size > DATA_BUF_SIZE) size = DATA_BUF_SIZE;
ret = recv(sn, buf, size);
if(ret <= 0) return ret; // check SOCKERR_BUSY & SOCKERR_XXX. For showing the occurrence of SOCKERR_BUSY.
size = (uint16_t) ret;
buf[size]=0;
printf("%s",buf);
sentsize = 0;
while(size != sentsize)
{
ret = send(sn, buf+sentsize, size-sentsize);
if(ret < 0)
{
close(sn);
return ret;
}
sentsize += ret; // Don't care SOCKERR_BUSY, because it is zero.
}
}
break;
case SOCK_CLOSE_WAIT :
#ifdef _LOOPBACK_DEBUG_
printf("%d:CloseWait\r\n",sn);
#endif
if((ret = disconnect(sn)) != SOCK_OK) return ret;
#ifdef _LOOPBACK_DEBUG_
printf("%d:Socket Closed\r\n", sn);
#endif
break;
case SOCK_INIT :
#ifdef _LOOPBACK_DEBUG_
printf("%d:Listen, TCP server loopback, port [%u]\r\n", sn, port);
#endif
if( (ret = listen(sn)) != SOCK_OK) return ret;
break;
case SOCK_CLOSED:
#ifdef _LOOPBACK_DEBUG_
printf("%d:TCP server loopback start\r\n",sn);
#endif
if((ret = socket(sn, Sn_MR_TCP, port, 0x00)) != sn) return ret;
#ifdef _LOOPBACK_DEBUG_
printf("%d:Socket opened\r\n",sn);
#endif
break;
default:
break;
}
return 1;
}
